michigan bike registrations

DSN_KLR650
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frankconley
Posts: 45
Joined: Mon Mar 01, 2004 2:32 pm

nklr physics question

Post by frankconley » Thu Feb 03, 2005 11:52 am

I understand that with powerful brakes on a sportbike you can do a stoppie. My question is, when I do a hard stop from 50 mph, why doesn't the rear end of my KLR lift up, even when I'm not using the rear brake? Is the back of the bike actually heavy enough to overcome the forward momentum? If so, how come I can easily lift the rear end of my mountain bike when using only the front brake, even though I'm sitting on the seat? Does it have to do with weight distribution, or the position of the brake caliper, or what? I have faith that it's okay to use the front brake hard, but I'd like to know the reasons . . . .

kennethhenton
Posts: 77
Joined: Mon Jul 12, 2004 11:19 am

nklr physics question

Post by kennethhenton » Thu Feb 03, 2005 12:04 pm

--- In DSN_KLR650@yahoogroups.com, "frankconley" wrote:
> > I understand that with powerful brakes on a sportbike you can do a > stoppie. My question is, when I do a hard stop from 50 mph, why > doesn't the rear end of my KLR lift up, even when I'm not using
the
> rear brake? Is the back of the bike actually heavy enough to > overcome the forward momentum? If so, how come I can easily lift > the rear end of my mountain bike when using only the front brake, > even though I'm sitting on the seat? Does it have to do with
weight
> distribution, or the position of the brake caliper, or what? I
have
> faith that it's okay to use the front brake hard, but I'd like to > know the reasons . . . .
Short answer, the KLR isn't a sport bike. Long answer, the KLR has a single piston caliper on a single disc, most sport bikes have twin piston calipers on twin front discs therefore probably 4 times the stopping power of the KLR. Ken

John Kokola
Posts: 332
Joined: Tue Oct 12, 2004 9:46 pm

nklr physics question

Post by John Kokola » Thu Feb 03, 2005 12:05 pm

There are several factors that contribute to keeping the rear of a KLR on the ground; Relatively weak brakes; Soft front suspension; Lots of travel in the front suspension; Suspension geometry (shallower rake, etc.); I'm sure there's more ... It's fine to use the front brake as hard as you can up to the point where you lose traction. :D --John Kokola -----Original Message----- From: frankconley I understand that with powerful brakes on a sportbike you can do a stoppie. My question is, when I do a hard stop from 50 mph, why doesn't the rear end of my KLR lift up, even when I'm not using the rear brake?

James Holland
Posts: 10
Joined: Sat Jan 22, 2005 4:34 am

nklr physics question

Post by James Holland » Thu Feb 03, 2005 3:44 pm

The front brake on the Kwack is pretty weak, supension and weight transfer play a big part too. My old VFR would lift the rear very easily. When I revalved the front and fitted WP springs it wouldn't do it anymore. The reduction in dive meant that there was much less weight transfered to the front under braking. The downside was that it would lock the front tyre instead so you had to be ready to let it off pretty quick.
----- Original Message ----- From: "kennethhenton" To: DSN_KLR650@yahoogroups.com> Sent: Thursday, February 03, 2005 6:03 PM Subject: [DSN_KLR650] Re: NKLR Physics question > > > --- In DSN_KLR650@yahoogroups.com, "frankconley" > wrote: >> >> I understand that with powerful brakes on a sportbike you can do a >> stoppie. My question is, when I do a hard stop from 50 mph, why >> doesn't the rear end of my KLR lift up, even when I'm not using > the >> rear brake? Is the back of the bike actually heavy enough to >> overcome the forward momentum? If so, how come I can easily lift >> the rear end of my mountain bike when using only the front brake, >> even though I'm sitting on the seat? Does it have to do with > weight >> distribution, or the position of the brake caliper, or what? I > have >> faith that it's okay to use the front brake hard, but I'd like to >> know the reasons . . . . > > Short answer, the KLR isn't a sport bike. > Long answer, the KLR has a single piston caliper on a single disc, > most sport bikes have twin piston calipers on twin front discs > therefore probably 4 times the stopping power of the KLR. Ken > > > > > > Archive Quicksearch at: > http://www.angelfire.com/ut/moab/klr650_data_search.html > List sponsored by Dual Sport News at: www.dualsportnews.com > List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html > > > Yahoo! Groups Links > > > > > > >

Keith Saltzer
Posts: 1071
Joined: Thu Jul 24, 2003 10:03 pm

nklr physics question

Post by Keith Saltzer » Thu Feb 03, 2005 4:00 pm

--- In DSN_KLR650@yahoogroups.com, "James Holland" wrote:
> The front brake on the Kwack is pretty weak, supension and weight
transfer
> play a big part too. My old VFR would lift the rear very easily.
When I
> revalved the front and fitted WP springs it wouldn't do it anymore.
The
> reduction in dive meant that there was much less weight transfered
to the
> front under braking. The downside was that it would lock the front
tyre
> instead so you had to be ready to let it off pretty quick.
It should still do it. When you do a stoppie, you should be "settling" the front suspension first, but squeezing the lever hard enough at first to let the suspension, and front wheel, compress to their max for the given weight on the bike. After that happens, (doesn't take long, just the right technic) then you squeeze the brake harder and harder till the rear end gets light and comes up. Your front end changes will make this whole process feel different for sure, but it should still do it. When you DON'T compress the front end and tire first, and just hit the brake too hard, too fast, all at once, the suspension and tire will still compress, but it will compress too much, going past the "stable" point and then the front end will have to unload causing the front wheel to bounce back up into the air. This is of course where your front wheel will lock up and stay locked up, compressing and uncompressing while your hear and feel your front wheel "chatter" down the road, until you let off the brake some. MrMoose A8 (Barbie and Ken special)

Mike Frey
Posts: 833
Joined: Sun Apr 04, 2004 10:53 am

nklr physics question

Post by Mike Frey » Thu Feb 03, 2005 4:38 pm

frankconley wrote:
>I understand that with powerful brakes on a sportbike you can do a >stoppie. My question is, when I do a hard stop from 50 mph, why >doesn't the rear end of my KLR lift up, even when I'm not using the >rear brake? Is the back of the bike actually heavy enough to >overcome the forward momentum? If so, how come I can easily lift >the rear end of my mountain bike when using only the front brake, >even though I'm sitting on the seat? Does it have to do with weight >distribution, or the position of the brake caliper, or what? I have >faith that it's okay to use the front brake hard, but I'd like to >know the reasons . . . . > >
It's not easy. Last summer, I was able to do a couple of stoppies on mine. I only weighed 160 at the time. It takes good traction, a massive squeeze of the brake lever, and your weight needs to be forward. Probable reasons for being easier on a sport bike as compared to KLR: 1) Front tire has much more traction during a stop 2) Weight bias on the KLR makes heavier rear end 3) Sport bikes have much more powerful brakes 4) Riding position moves more weight to front end on sport bikes My 1976 Suzuki GT-750 "Water Buffalo" can easily lock the front wheel in a stop, but I doubt if the bike's rear end would ever come off the ground no matter what I did. Until the early 80s, "stoppies" were rare. It wasn't until the bikes had much wider front tires and that "laid down" crotch rocket look that puts a lot of the riders weight on the handle bars that it became more common.

James Holland
Posts: 10
Joined: Sat Jan 22, 2005 4:34 am

nklr physics question

Post by James Holland » Thu Feb 03, 2005 4:53 pm

I am aware of all that, I used to road race bikes when I was younger. I haven't tried very hard to do a stoppie on the Kawasaki yet as the head bearings were shot when I got it and just after I replaced them it was stolen and beaten up. The Tengai should be better for that sort of thing as it has a better front brake :-). Once its back on the road I shall give it a try - purely in the interests of scientific research of course :-)
----- Original Message ----- From: "Keith Saltzer" To: DSN_KLR650@yahoogroups.com> Sent: Thursday, February 03, 2005 10:00 PM Subject: [DSN_KLR650] Re: NKLR Physics question > > > --- In DSN_KLR650@yahoogroups.com, "James Holland" > wrote: >> The front brake on the Kwack is pretty weak, supension and weight > transfer >> play a big part too. My old VFR would lift the rear very easily. > When I >> revalved the front and fitted WP springs it wouldn't do it anymore. > The >> reduction in dive meant that there was much less weight transfered > to the >> front under braking. The downside was that it would lock the front > tyre >> instead so you had to be ready to let it off pretty quick. > > > It should still do it. When you do a stoppie, you should > be "settling" the front suspension first, but squeezing the lever > hard enough at first to let the suspension, and front wheel, compress > to their max for the given weight on the bike. > > After that happens, (doesn't take long, just the right technic) then > you squeeze the brake harder and harder till the rear end gets light > and comes up. Your front end changes will make this whole process > feel different for sure, but it should still do it. > > When you DON'T compress the front end and tire first, and just hit > the brake too hard, too fast, all at once, the suspension and tire > will still compress, but it will compress too much, going past > the "stable" point and then the front end will have to unload causing > the front wheel to bounce back up into the air. This is of course > where your front wheel will lock up and stay locked up, compressing > and uncompressing while your hear and feel your front wheel "chatter" > down the road, until you let off the brake some. > > MrMoose > A8 (Barbie and Ken special) > > > > > > Archive Quicksearch at: > http://www.angelfire.com/ut/moab/klr650_data_search.html > List sponsored by Dual Sport News at: www.dualsportnews.com > List FAQ courtesy of Chris Krok at: www.bigcee.com/klr650faq.html > > > Yahoo! Groups Links > > > > > > >

Jim
Posts: 1560
Joined: Thu Jun 07, 2001 11:15 am

nklr physics question

Post by Jim » Thu Feb 03, 2005 5:26 pm

The 21" front wheel and relative axle height should be in here also. --Jim A-15
> There are several factors that contribute to keeping the rear of a
KLR on the ground;
> > Relatively weak brakes; > Soft front suspension; > Lots of travel in the front suspension; > Suspension geometry (shallower rake, etc.); > I'm sure there's more ... > > It's fine to use the front brake as hard as you can up to the point
where you lose traction. :D
> > --John Kokola > > -----Original Message----- > From: frankconley > > I understand that with powerful brakes on a sportbike you can do a > stoppie. My question is, when I do a hard stop from 50 mph, why > doesn't the rear end of my KLR lift up, even when I'm not using the > rear brake?

Darren Clark
Posts: 265
Joined: Sun May 16, 2004 10:10 pm

michigan bike registrations

Post by Darren Clark » Thu Feb 03, 2005 8:46 pm

Hey all Michiganders, I just renewed my registrations for all my trucks, jeeps, dunebuggy, and bike. The lady at the SOS office told me Michagan has a new law that changes the experation date from the end of March to your birthday for motorcycles. I don't know how long this link will work for, so I've included the page contents here too. http://www.michigan.gov/sos/0,1607,7-127--109489--,00.html Contact: Kelly Chesney (517) 373-2520 Agency: Secretary of State FEBRUARY 1, 2005 Secretary of State Terri Lynn Land announced that motorcyclists will find it even easier to renew their registrations thanks to a new law that changes the expiration from the fixed date of March 31 to the owner's birthday. Public Act 163 of 2004 takes effect today. Rep. Bill Huizenga, R-Zeeland, sponsored the legislation. "We're always looking for cost-effective ways to make it easier to do business with the department, and the change in motorcycle registrations is a 'win-win' for everyone," Land said. "This new law reduces the number of times motorcyclists interact with the department which means they can spend more time on the road. "I would like to thank Representative Huizenga for his leadership in guiding this measure through the legislative process." Land explained that changing the expiration date to the birthday aligns motorcycle registrations with those of other privately owned vehicles, providing several benefits to the customer and the Department of State. It reduces the number of times customers must interact with the department, which means fewer people and faster service in branch offices. Most owners also will have only one date to remember for most vehicle renewals - their birthday. In addition, the change allows the department to consolidate the processing and mailing of vehicle and motorcycle renewals. This is the last year that all individually owned motorcycle registrations expire on March 31. To assist with the transition, fees will be prorated for this first renewal cycle based on the number of months from April 1 to the owner's birthday. Motorcycle registrations renewed by March 31 will be prorated based on the following schedule http://www.michigan.gov/documents/Motorcycle_Reg_Chart_115201_7.pdf>: Renewals processed after March 31 will be assessed a $10 late fee. Subsequent renewals will be calculated for a full year from the owner's birthday. Registrations may be renewed online at www.Michigan.gov/sos, by touch-tone telephone or mail, or in person at a branch office. The law also allows motorcyclists to renew up to six months early, a convenience already afforded other motorists. Prior to the change, motorcyclists could renew their tabs only up to six weeks before the March 31 deadline, creating headaches for those who wanted to take their motorcycles to warmer climates at the start of winter. Darren Clark 2004 KLR650 A18 (Now with a vanity plate!) [Non-text portions of this message have been removed]

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